Home / 148,111.66-222,068.94-81,583.12

Finding the Fourth Proportional to 148,111.66, 222,068.94 and 81,583.12

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Solution

The fourth proportional to 148,111.66, 222,068.94 and 81,583.12 is: 122,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,111.66 : 222,068.94 = 81,583.12 : x
  2. Step 2: Convert to fraction form
    148,111.66/222,068.94 = 81,583.12/x
  3. Step 3: Cross multiply
    148,111.66x = 222,068.94 × 81,583.12
  4. Step 4: Simplify right side
    148,111.66x = 18,117,076,980.29
  5. Step 5: Solve for x
    x = 18,117,076,980.29/148,111.66
  6. Step 6: Final answer
    x = 122,320.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.